#include <criterion/criterion.h>
#include <criterion/new/assert.h>

#include "../../../src/expansion/expansion.h"

TestSuite(parse_subshell_str);

Test(parse_subshell_str, basic_subshell)
{
    char *input = "(ls -l)";
    char *extracted_var = NULL;
    size_t r = parse_subshell_str(input, &extracted_var);

    cr_expect(r == 7);
    cr_expect_str_eq(extracted_var, "ls -l");
    free(extracted_var);
}

Test(parse_subshell_str, multi_basic_subshell)
{
    char *input = "(echo hello) and (echo world)";
    char *extracted_var = NULL;
    size_t r = parse_subshell_str(input, &extracted_var);

    cr_expect(r == 12);
    cr_expect_str_eq(extracted_var, "echo hello");
    free(extracted_var);

    input += r + 5; // skip " and "
    r = parse_subshell_str(input, &extracted_var);

    cr_expect(r == 12);
    cr_expect_str_eq(extracted_var, "echo world");
    free(extracted_var);
}

Test(parse_subshell_str, incomplete_braces)
{
    char *input = "(echo hello";
    char *extracted_var = NULL;
    size_t r = parse_subshell_str(input, &extracted_var);

    cr_expect(r == 0);
    cr_expect(extracted_var == NULL);
}

Test(parse_subshell_str, empty_braces)
{
    char *input = "()";
    char *extracted_var = NULL;
    size_t r = parse_subshell_str(input, &extracted_var);

    cr_expect(r == 0);
    cr_expect(extracted_var == NULL);
}

Test(parse_subshell_str, nested_subshell)
{
    char *input = "(echo (nested))";
    char *extracted_var = NULL;
    size_t r = parse_subshell_str(input, &extracted_var);

    cr_expect(r == 15);
    cr_expect_str_eq(extracted_var, "echo (nested)");
    free(extracted_var);

    char *nested = input + 6; // point to the nested subshell
    r = parse_subshell_str(nested, &extracted_var);
    cr_expect(r == 8);
    cr_expect_str_eq(extracted_var, "nested");
    free(extracted_var);
}